Nikon Z9 Mirrorless Camera - Manual (Page 721)

721 B The Setup Menu: Camera Setup
2
With the lens about ten centimeters (four inches) from a well-lit,
featureless white object, frame the object so that it fills the
display and then press the shutter-release button halfway.
• In autofocus mode, focus will automatically be set to infinity.
• In manual focus mode, set focus to infinity manually.
3
Press the shutter-release button the rest of the way down to
acquire Image Dust Off reference data.
• The monitor turns off when the shutter-release button is pressed.
• If the reference object is too bright or
too dark, the camera may be unable to
acquire Image Dust Off reference data,
in which case a message will appear and
the camera will return to the display
shown in Step 1. Choose another
reference object and press the shutter-
release button again.